Hearing test instrument



FIG. 1 is a perspective view of his hearing test instrument;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right side elevational view with the left side elevational view being a substantial mirror image;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a perspective view of an alternative embodiment of the hearing test instrument shown in FIG. 1;

FIG. 8 is a front view of the embodiment shown in FIG. 7;

FIG. 9 is a rear view of the embodiment shown in FIG. 7;

FIG. 10 is a right side elevational view of the embodiment shown in FIG. 7 with the left side elevational view being a substantial mirror image;

FIG. 11 is a top view of the FIG. 7 embodiment; and,

FIG. 12 is a bottom view of the FIG. 7 embodiment. 

The ornamental design for a hearing test instrument, as shown and described. 